[nsp] MD5 causes biggern problem than it fixes?

Gert Doering gert at greenie.muc.de
Wed Apr 21 11:54:49 EDT 2004


Hi,

On Wed, Apr 21, 2004 at 10:47:07AM -0500, Edward Henigin wrote:
> Which way is a mortal soul to go?

"down"

Seriously: you should rate-limit the amount of packets targeted at your
routers anyway (control-plane rate-limiting in recent IOS versions, or
just plain interface rate-limiting in earlier versions).

If you rate-limit RST and SYN packets to a very low rate, most packets will 
already be dropped before even MD5 checking them...  "BGP established" 
packets shouldn't be rate-limited, though.

gert

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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de


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